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Question

The number of $- O H$ units directly bonded to boron atoms in borax is :
3
10
4
5

A

3

B

4

C

5

D

10

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Solution

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As can be seen from the image 4 −OH units are directly bonded to boron atoms in borax.

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Similar Questions

Q1

The number of

- O H

units directly bonded to boron atoms in borax is :

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Q2

Borax is actually made of two tetrahedra and two triangular units joined together and should be written as: Na2[B4O5(OH)4]·8H2O

The correct statement/s about borax is/are:

a. Each boron atom has four B-O bonds

b. Each boron atom has three B-O bonds

c. Two boron atoms have four B-O bonds while other two have three B-O bonds

d. Each boron atom has one -OH groups

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Q3

In the structure of borax, the numbers of boron atoms and B-O-B units, respectively, are :

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Q4

Borax is actually made of two tetrahedral and two triangular units joined together and should be
written as :

N a_{2} [B_{4} O_{5} (O H)_{4}] .8 H_{2} O

.
Consider the following statements about borax:
1. Each boron atom has four B-O bonds
2. EAch boron atom has three B-O bonds
3. Two boron atoms have four B-O bonds while other two have three B-O bonds
4. Each boron atom has one-OH groups
Select correct statement(s) -

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Q5

Borax is correctly represented as

N a_{2} [B_{4} O_{5} (O H)_{4}] .8 H_{2} O

. Number of tetrahedral boron atoms present are

x

and number of

B - O - B

bonds are

y

. The value of

\frac{y}{x}

is

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